Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK 数据表
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产品代码
AT91SAM9X25-EK
940
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
41.9.12 CAN Write Protection Mode Register
Name:
CAN_WPMR
Address:
0xF80000E4 (0), 0xF80040E4 (1)
Access:
Read-write
• WPEN: Write Protection Enable
0: The Write Protection is Disabled
1: The Write Protection is Enabled
• WPKEY: SPI Write Protection Key Password
If a value is written in WPEN, the value is taken into account only if WPKEY is written with “CAN” (CAN written in ASCII Code, ie
0x43414E in hexadecimal).
0x43414E in hexadecimal).
Protects the registers:
31
30
29
28
27
26
25
24
WPKEY
23
22
21
20
19
18
17
16
WPKEY
15
14
13
12
11
10
9
8
WPKEY
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
WPEN